0654.B11.1.02 — Investigate the differences in composition between inspired and expired air using limewater as a test for carbon dioxide: past paper questions
Real questions on 0654.b11.1.02 — investigate the differences in composition between inspired and expired air using limewater as a test for carbon dioxide
The newest 8 of 8 written questions. Open one to see it on the real paper.
- 0973/42 · May/June 2025 · Q2c(i)[1]
Calculate the difference in composition of the carbon dioxide in Table 2.1. Write your answer in Table 2.1.
See it on the paper → - 0973/31 · October/November 2023 · Q2b(i)[1]
State one adverse effect of sulfur dioxide on the health of humans.
See it on the paper → - 0973/41 · October/November 2023 · Q1c[1]
Lung cancer is another disease that affects the lungs. State the major cause of lung cancer.
See it on the paper → - 0973/31 · May/June 2022 · Q2c(iv)[2]
State the chemical test for carbon dioxide and the observation for a positive result. test observation
See it on the paper → - 0973/42 · May/June 2022 · Q10c[3]
Table 10.1 shows some components of tobacco smoke and their effects. Complete Table 10.1. Table 10.1 component of tobacco smoke effect causes addiction carbon monoxide
See it on the paper → - 0973/31 · May/June 2021 · Q1b(ii)[2]
State the test for carbon dioxide gas and give the observation for a positive result. test observation
See it on the paper → - 0973/31 · May/June 2021 · Q1c(i)[1]
State the breathing rate of the student while walking. breaths per minute
See it on the paper → - 0973/31 · May/June 2021 · Q1c(ii)[2]
The student repeats the investigation and records the breathing rate while at rest. Describe the expected changes to the pattern of breathing while at rest when compared to running.
See it on the paper →
What examiners said
The majority of candidates could calculate the difference in carbon dioxide percentage between inspired and expired air.
— Examiner report, May/June 2025, 0973/42 Q2(c)(i) (Cambridge)
The majority of candidates gave smoking as a major cause of lung cancer.
— Examiner report, October/November 2023, 0973/41 Q1(c) (Cambridge)
The limewater test for carbon dioxide was well known. A few candidates described the test for hydrogen gas.
— Examiner report, May/June 2022, 0973/31 Q2(c)(iv) (Cambridge)
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